Combination of materials for mercury-dispensing devices, method

Details Combination of materials for mercury-dispensing devices, method Combination of materials for mercury-dispensing devices, method

1995-02-23

1996-05-28

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

Generating gas or vapor within an envelope, or coating by...

2521813, H01J 9395

Patent

active

055205607

ABSTRACT:
A mercury-dispensing combination suitable to release an amount of mercury higher than 60% during the activation step, even after partial oxidation, includes a mercury-dispensing intermetallic compound A with Hg and a second metal selected among Ti, Zr and mixtures thereof, as well as a promoting alloy or intermetallic compound B including Cu and a second metal selected among Sn, In or Ag or combinations thereof. There is also disclosed a mercury-dispensing device containing a combination of materials A and B, in addition to a process for introducing mercury into electron tubes consisting in the introduction of one of said devices inside the open tube and then heating thereof at a temperature between 550.degree. and 900.degree. C. after the tube sealing in order to get Hg free.

REFERENCES:
patent: 3318649 (1967-05-01), Keller, Jr. et al.
patent: 3722976 (1973-03-01), Porta et al.
patent: 3733194 (1973-05-01), Della Porta et al.
patent: 4105910 (1978-08-01), Evans
patent: 4464133 (1984-08-01), Buhrer

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